Caught my eye.

Deutsche Bank and Citigroup Bleed More Equity: The Reason Why Should Concern Us All

Problems at Deutsche could spill over onto big Wall Street banks like Morgan Stanley, JPMorgan Chase, Citigroup, Bank of America and Goldman Sachs, which just happen to be where derivatives are deeply concentrated in the U.S.

Spasms in big Wall Street bank stocks have been happening on a serial basis over the past three years. (See here and here.) Yesterday offered another one of those bank warning signs to a Congress intent on further deregulation of an already dangerously deregulated market.

As the stock market grappled yesterday with fears of sinking emerging market currencies leading to loan defaults at European banks that are derivative counterparties to the biggest banks on Wall Street, the Wall Street banking sector was a sea of red. Two banks in particular sold off more than others.